Faber-Castell Pitt Artist Pens - Dark Sepia Medium Tip (Set of 8) - Professional Drawing, Sketching & Calligraphy Supplies for Artists and Illustrators

I really like the quality of these pens, permanent and wonderful for an artist or illustrator, a deep brown colour. The fine tip is even better than this medium one for detail, however the felt tip will probably not last if you let a child use it...